I personally hope that paladins still will be the AOE tank in WOTLK, and the main choice for heroics for their ability to run instances without CC. I think it would be sad if they lost that thing because it is what made the prot paladin in TBC.
There is no better feeling that going to an instance with 3 mage/warlocks and a healer, and someone ask what he/she should CC, and you reply "CC? whats that, never heard of a AOE spell called CC".

I hope that CC abilities would be more a choice insted of a most, because otherwise you will still be "forced" to take mage/other class's with no-CD-CC.
But we will see, nothing is settled, nothing is finite, we will see and then....we will be like the Borgs and adapt